Experiencing bloating after meals is common, but when it becomes persistent or severe, it could be a warning sign of something more serious, such as colorectal cancer. In Singapore, colorectal cancer is the second most common cancer in men and women, according to the Singapore Cancer Registry. While bloating is often dismissed as a minor digestive issue, ongoing or unexplained bloating should never be ignored.
Learn More: Colon & Rectal Cancer In Singapore >>
Understanding The Link Between Bloating And Colorectal Cancer
Bloating occurs when gas or fluid accumulates in the digestive system, causing discomfort and a swollen abdomen. While it is often caused by diet or indigestion, persistent bloating—especially when accompanied by other symptoms—could indicate a blockage or abnormal growth in the colon.
Colorectal cancer develops when abnormal cells in the colon or rectum grow uncontrollably, forming tumours. These tumours can partially or completely block the intestines, leading to gas buildup, bloating, and changes in bowel habits.
Symptoms Of Colorectal Cancer
Bloating alone does not necessarily indicate cancer, but when it occurs alongside the following symptoms, it is crucial to seek medical attention:
- Changes in bowel habits – Persistent diarrhoea, constipation, or alternating between both
- Blood in stools – Bright red or dark, tarry stools
- Unexplained weight loss – Sudden weight loss without diet or lifestyle changes
- Abdominal pain or discomfort – Cramps, bloating, or persistent discomfort in the lower abdomen
- Fatigue and weakness – Due to internal blood loss and reduced iron levels
- A feeling of incomplete bowel emptying – A sensation that you still need to pass stool even after using the toilet
If bloating is persistent (lasting more than a few weeks) and accompanied by these symptoms, it could be a symptom of colorectal cancer.
Risk Factors For Colorectal Cancer
1. Age And Family History
Colorectal cancer is more common in individuals over 50 years old, but younger adults can also develop it. A family history of colorectal cancer increases the risk significantly.
2. Diet And Lifestyle
A diet high in red or processed meats, low in fibre, and high in fat can contribute to colorectal cancer risk. Singaporeans’ growing consumption of processed foods and fast food has been linked to an increase in colorectal cancer cases.
3. Obesity And Sedentary Lifestyle
A lack of exercise and being overweight can increase the likelihood of developing colorectal cancer. Maintaining a healthy weight and staying active can lower the risk.
4. Smoking And Excessive Alcohol Consumption
Both smoking and heavy alcohol intake are linked to a higher risk of colorectal cancer. Reducing or quitting these habits can help prevent it.
Early Detection Can Save Lives
Colorectal cancer often develops silently, with symptoms appearing only in later stages. Regular screening is crucial for early detection and better treatment outcomes. In the early-stages, the cancer has around a 84% and 86% survival rate for men and women, respectively. However, the survival rate drops drastically, about 10-11% for both genders, if the colon cancer progresses to stage IV (based on 2011-2015 data).
In Singapore, the Faecal Occult Blood Test (FOBT) and colonoscopy are widely recommended for individuals above 50 or those with risk factors. A colonoscopy is the gold standard for colorectal cancer screening. It can detect and remove precancerous polyps, preventing the disease from progressing.
Learn More: Colorectal Cancer Screening In Singapore >>
When To See A Doctor
Seek medical attention if you experience:
- Bloating that lasts for weeks and does not improve
- Unexplained weight loss or appetite changes
- Blood in stools or persistent changes in bowel habits
- Severe or frequent abdominal pain
- A family history of colorectal cancer
Take Action For Your Digestive Health
Persistent bloating after meals should never be ignored, especially when it comes with other warning signs. Colorectal cancer is highly treatable when detected early, so timely medical attention can make a significant difference.
Concerned about persistent bloating or digestive issues? Contact us today to book an appointment with a colorectal specialist in Singapore. Early screening saves lives—don’t delay seeking help!
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This article is informative only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment, and should never be relied upon for specific medical advice.